Flash ubuntu-preintalled-raspi image Need cifs-utils installed
Add mount points for /var/lib/rancher/k3s/storage and /mnt/speicher Add worker-fstab entries
Install tailscale Install for Ubuntu
Add loopback cni plugin and mount bpf
sudo mount bpffs -t bpf /sys/fs/bpf
sudo mkdir -p /opt/cni/bin
sudo mv /tmp/loopback /opt/cni/bin/loopback
Install k3s... --flannel-backend=none didn't work
NODE_TOKEN=from server at /var/lib/rancher/k3s/server/node-token
curl -sfL https://get.k3s.io | K3S_URL=https://10.64.205.130:6443 K3S_TOKEN=$NODE_TOKEN INSTALL_K3S_EXEC='--no-flannel --node-label storagespeed=slow' sh -
Prefer not to schedule on the control plane
k taint node blueberry node-role.kubernetes.io/master:PreferNoSchedule node-role.kubernetes.io/control-plane:PreferNoSchedule